According to a diplomatic cable released by WikiLeaks, in August
2007 the head of Israel's intelligence agency urged US Under Secretary
of State for Political Affairs, R. Nicholas Burns, to join with Israel
in carrying out a five-part strategy to implement regime change in Iran.

Mossad Director Meir Dagan acknowledged at the meeting that the
American analysis of Iran's alleged nuclear weapons program was
different from Israel's, but he insisted that the threat from Iran was
"obvious" and stated that Israel was willing to take action
unilaterally.